Stumped - Ac Issues - HVAC - Page 2 - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 07-06-2013, 04:11 PM   #16
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 10,096
Rewards Points: 830
Default

stumped - ac issues


yah, but you should see our extreme -30 to -40F with a 30 mph wind in the Winter. Texas extreme HOT, WPG extreme COLD.

Advertisement

__________________
"Cut it twice and it is still too short".
yuri is online now   Reply With Quote
The Following User Says Thank You to yuri For This Useful Post:
adrenaline_x (07-06-2013)
Old 07-06-2013, 04:31 PM   #17
Newbie
 
Join Date: Jul 2013
Posts: 11
Rewards Points: 10
Default

stumped - ac issues


Quote:
Originally Posted by yuri View Post
you have a 018 which is 18,000 btu and the right size. however at 25 yrs old the compressor has a LOT of miles on it and is worn and you are getting about 80-85% of the cooling it did when new. that is why it is not doing so well. also that furnace has about a 95% chance of having a cracked heat exchanger. the ac coil is on top of the heat ex so you cannot get under it to clean it. hate to say it but you really should be looking at a new furnace and ac pkg soon. get about a $500 discount as a pkg. and there are some good summer promotions on now. best bang for your buck $$ IMO is the basic Rheem but they can be a bit noisier but work very well. depends on whether you want a good meat and potatoes unit ( it is) or quieter but more expensive Lennox or others. trying to give you good $$ advice.
Thanks yuri.. I'm aware of the Heat Exchanger Issues that is common with this furnace.. My uncle that is in plumbing and heating (gas ticket and heating) inspected the heat exchanger last fall and did not see any cracks and we have a carbon monoxide detector in the house just in case. It alwasy reads zero unless i put it in the garage with the truck running

Manitoba Hydro has financing for furnace and ac upgrade as long as the ac is 13 seer and the furnace is 95% efficent.. Crazy temp swings here. -35c in the winter and 35C in the summer . Seeing as you are in winnipeg do you have any recommendations for a/c / furnace installers ?
adrenaline_x is offline   Reply With Quote
Old 07-06-2013, 04:40 PM   #18
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,471
Rewards Points: 4,588
Default

stumped - ac issues


Quote:
Originally Posted by adrenaline_x View Post
We have a fan blowing in the living room the house still feels sticky when its 22c or 24c.

We had a dehumidifier in the basement last year to try and help but it didn't seems to make much of a difference. It seems like the AC is ADDING humidity to the house when its running.. which i thought was supposed to be the opposite.
?
According to the readings you posted in post #7, your supply air has 2 quarts more moisture per hour in it then the return air does.

The tech you had out. Didn't do a full check on the system. Pressure alone doesn't tell you much about a system.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is offline   Reply With Quote
The Following User Says Thank You to beenthere For This Useful Post:
adrenaline_x (07-06-2013)
Old 07-06-2013, 04:46 PM   #19
Newbie
 
Join Date: Jul 2013
Posts: 11
Rewards Points: 10
Default

stumped - ac issues


Quote:
Originally Posted by beenthere View Post
According to the readings you posted in post #7, your supply air has 2 quarts more moisture per hour in it then the return air does.

The tech you had out. Didn't do a full check on the system. Pressure alone doesn't tell you much about a system.
This is using a house hold digital temperature and rh thing that sits on a shelf. The temperature takes a long time to move but the RH jumps pretty quick..

I have a THUM unit from our disassembled from our obsolete server room so i will try that out tomorrow when i have more time.. It has very acurate readings but i didn't grab my laptop before i left work.

http://practsol.com/thum.htm
adrenaline_x is offline   Reply With Quote
Old 07-06-2013, 05:04 PM   #20
Newbie
 
Join Date: Jul 2013
Posts: 11
Rewards Points: 10
Default

stumped - ac issues


After changing the fan speed from high to low (ther is med high, med -low as well) the temperate dropped to 54f 10 feet from the top of the furnace and more water is coming out of the a/c drain hose. RH in the duct is showing 81% at 13C.
adrenaline_x is offline   Reply With Quote
Old 07-06-2013, 05:14 PM   #21
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,471
Rewards Points: 4,588
Default

stumped - ac issues


Still not very cold.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is offline   Reply With Quote
Old 07-06-2013, 05:35 PM   #22
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 10,096
Rewards Points: 830
Default

stumped - ac issues


what is happening and it is tricky to explain but the ole pros may understand is your unit is probably low on freon and the ac coil is dirty. there is a scenario where the coil is close to freezing up from poor airflow and with it being low on freon it does not but you end up with cold air but not enough of it in literal btus. once the coil is cleaned the suction pressure rises like crazy and the temp rises. has to do with thermodynamics and refrigeration theory. yours is worn out and probably low on freon too. cannot really give out names but a "reliable company" is pretty good and possibly one with "fore seasons". I work for neither as I do Lennox and they don't.

Advertisement

__________________
"Cut it twice and it is still too short".
yuri is online now   Reply With Quote
Reply

Tags
ac high humidity.


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
temperature and pressure issues jpa137 Plumbing 7 04-04-2012 10:48 PM
House settling issues gmvshort Building & Construction 3 02-22-2011 07:26 AM
Demo'd Half-Bath, Issues, Pics Attached, Have at it... 99altrade Building & Construction 4 12-21-2010 05:50 PM
Spray foam - code issues? upinsmoke Building & Construction 1 05-10-2010 08:47 PM




Top of Page | View New Posts